Test plug closure

Abstract

A pipe test plug device for testing pipes includes a coupling and a quick release seal that includes pull points to allow the seal to controllably break free and be removed in pieces whether the pipe to be tested is plastic or metallic.

1 . A test plug closure for testing pipe systems comprising: 
 a molded plastic pipe fitting having at least one inlet and at least one outlet in fluid communication therewith, said pipe fitting having a seal molded across and preventing flow through at least one outlet, said seal comprising a generally disc shaped member having a break line around the circumference of the seal which allows the seal to be removed from said pipe fitting, said seal further including at least one line attachment member for attaching a line thereto to aid in breaking the seal free from the remainder of said pipe fitting at said break line.    
     
     
         2 . The test plug closure of  claim 1  further including at least one additional break line constructed and arranged to break said seal into at least two discrete sections, each of said sections including a line attachment member.  
     
     
         3 . The test plug of  claim 1  wherein said pipe fitting is a pipe coupling.  
     
     
         4 . The test plug of  claim 1  wherein said pipe fitting is a tee.  
     
     
         5 . A test plug closure for testing pipe systems comprising: 
 (a) a molded plastic pipe fitting having at least one inlet and at least one outlet in fluid communication therewith; and    (b) a plastic molded seal formed within said pipe fitting preventing flow through at least one outlet, said seal comprising a generally disc-shaped member having an outer periphery which forms a break line about which said seal may be removed from said pipe fitting, said seal further including at least one line attachment member for attaching a line thereto to aid in breaking the seal free from the pipe fitting at said outer periphery.    
     
     
         6 . The test plug closure of  claim 5  wherein said molded plastic seal includes at least one additional break line constructed and arranged to break said seal into at least two discrete sections, each of said sections including a line attachment member.  
     
     
         7 . A test plug closure for testing cast iron pipe systems comprising: 
 a) a rubber coupling having an inlet and an outlet which may be connected to a cast iron pipe system to be tested;    b) a seal for preventing flow through said rubber coupling, said seal comprising a generally disc-shaped member having an outer periphery which is encased and held to said rubber coupling and an inner break line about which said seal within said inner break line may be removed from said rubber coupling, said seal further including at least one line attachment member for attaching a line thereto to aid in breaking the seal within said inner break line free from the rubber coupling at said outer periphery.    
     
     
         8 . The test plug closure of  claim 7  wherein said rubber coupling is formed about said seal and said seal has a plurality of discrete through holes between its outer periphery and said break line through which rubber may flow during formation of the rubber coupling to lock said seal to said rubber coupling.  
     
     
         9 . The test closure of  claim 8  wherein said seal is formed of plastic.  
     
     
         10 . The test closure of  claim 8  wherein said seal is formed of metal.